Determination of firmness and sugar content of apples using near-infrared diffuse reflectance

被引:130
作者
Lu, RF
Guyer, DE
Beaudry, RM
机构
[1] Michigan State Univ, USDA, ARS, MWA,SBR, E Lansing, MI 48824 USA
[2] Michigan State Univ, Dept Agr Engn, E Lansing, MI 48824 USA
[3] Michigan State Univ, Dept Hort, E Lansing, MI 48824 USA
关键词
D O I
10.1111/j.1745-4603.2000.tb01024.x
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The objective of this research was to study the potential of near-infrared (NIR) diffuse reflectance between 800 nm and 1700 nm for determining the firmness and sugar content of apples and to ascertain the effects of apple peel and variety on the NIR prediction of these two quality attributes. The spectral reflectance data were acquired from both peeled and unpeeled 'Empire', 'Golden Delicious', and 'Red Delicious' apples. Statistical models were developed using principal component analysis/regression. Lower correlations of prediction were obtained (r=0.38 to 0.58) between NIR measurement and Magness-Taylor firmness for both unpeeled and peeled fruit, with the standard errors of prediction (SEP) between 6.6 N and 10.1 N. Improved predictions were obtained when NIR reflectance was correlated with the slope of the Magness-Taylor force-deformation curves. Excellent predictions of the sugar content in peeled apples were obtained (r=0.93 to 0.97; SEP=0.37 to 0.42 degrees Brix). The SEP, on average, increased by about 0.17 degrees Brix for the unpeeled apples. Variety did not have a large effect on the model performance on sugar content predictions.
引用
收藏
页码:615 / 630
页数:16
相关论文
共 16 条
[1]  
Abbott J. A., 1997, Horticultural Reviews, V20, P1
[2]  
ABBOTT JA, 1994, T ASAE, V37, P1211, DOI 10.13031/2013.28196
[3]  
[Anonymous], 1987, NEAR INFRARED TECHNO
[4]   FEASIBILITY AND PERFORMANCES OF A NEW, MULTIPLEXED, FAST AND LOW-COST FIBEROPTIC NIR SPECTROMETER FOR THE ONLINE MEASUREMENT OF SUGAR IN FRUITS [J].
BELLON, V ;
VIGNEAU, JL ;
LECLERCQ, M .
APPLIED SPECTROSCOPY, 1993, 47 (07) :1079-1083
[5]  
CHOI CH, 1997, P 5 INT S FRUIT NUT
[6]   NEAR-INFRARED ANALYSIS OF SOLUBLE SOLIDS IN INTACT CANTALOUPE [J].
DULL, GG ;
BIRTH, GS ;
SMITTLE, DA ;
LEFFLER, RG .
JOURNAL OF FOOD SCIENCE, 1989, 54 (02) :393-395
[7]  
DULL GG, 1992, T ASAE, V35, P735
[8]  
KAWANO S, 1992, J JPN SOC HORTIC SCI, V61, P445, DOI 10.2503/jjshs.61.445
[9]  
KAWANO S, 1993, J JPN SOC HORTIC SCI, V62, P465, DOI 10.2503/jjshs.62.465
[10]  
Lammertyn J, 1998, T ASAE, V41, P1089, DOI 10.13031/2013.17238